Deformation measurement of large buildings by holographical point replication

Flavio Guerra; Simon Hartlieb; Alexander Warsewa; Tobias Haist; Wolfgang Osten; Oliver Sawodny

doi:10.1117/12.2525815

12 July 2019 Deformation measurement of large buildings by holographical point replication

Flavio Guerra, Simon Hartlieb, Alexander Warsewa, Tobias Haist, Wolfgang Osten, Oliver Sawodny

Proceedings Volume 11058, Optics for Arts, Architecture, and Archaeology VII; 110580G (2019) https://doi.org/10.1117/12.2525815
Event: SPIE Optical Metrology, 2019, Munich, Germany

Abstract

This manuscript gives an overview of the multipoint method and the development of an easy to use measurement system which measures the deformation of large buildings. The multipoint method has previously been tested1, 2 and used mainly under controlled laboratory conditions (e.g. indoors). Difficulties are introduced when this method is used outdoors, mainly because of the increased measurement scale and the uncontrolled environment. Differences in air pressure due to convection or wind, as well as fog or rain can cause severe perturbations to the light which propagates towards the sensors. Compared with existing systems, such as laser trackers, our system does not need to scan the building, which leads to much higher temporal resolution, which in turn can be used to achieve a reduced statistical measurement uncertainty (averaging in time).

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Citation Download Citation

Flavio Guerra, Simon Hartlieb, Alexander Warsewa, Tobias Haist, Wolfgang Osten, and Oliver Sawodny "Deformation measurement of large buildings by holographical point replication", Proc. SPIE 11058, Optics for Arts, Architecture, and Archaeology VII, 110580G (12 July 2019); https://doi.org/10.1117/12.2525815

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